@dantheman: For data access/search, the relevant settings include:
1: Target Notebook:
In ON (2016), go to: File --> Options --> Save & Backup (panel) --> Save menu item:
Set the default Quick Notes Section to save to, and check the other defaults there are what you probably want.
NB: It is probably worthwhile going through the rest of the Options panels in that window to familiarise yourself with them, and change them as necessary. The other standard defaults in ON - as set up on installation - are usually adequate, but may not be ideal in all cases. The Advanced panel is especially useful. Microsoft have attempted to provide assumed default options for optimising the use of computing resources, including bandwidth, response time, disk storage, and GPU, but the user can change these to suit their particular requirements/constraints. One cannot easily "break" anything here, but take care anyway, just in case - e.g., think twice before relocating the default save/backup directories.
Then move down to the Send to OneNote menu item:
Set it as: "To new page in section Quick Notes in [name of main Notebook whose Quick Notes section you want to use as the default]"
2: Audio search:
In ON (2016), go to: File --> Options --> Audio & Video --> Audio Search menu item:
I think this was NOT ENABLED by default.
To ENABLE this, there should be a tick in the box by "Enable searching audio and video recordings for words"
3. OCR and indexing of text in images:
In ON (2016), go to: File --> Options --> Advanced menu item:
In the Advanced panel, scroll down to "Text recognition in pictures".
This is ENABLED by default.
To DISABLE this, there should be a tick in the box by "Disable text recognition in pictures".
Hope that helps, or is of use.